Joker Machine Internal Bar Mount for 1in Handlebars 09-300-2 Inspired by aircraft structural design combined with unique cafe racer styling Our mirror heads and mounting arms are completely CNC machined from billet aluminum, superlightweight, strong, and fully adjustable in a multitude of directions and settings All parts are anodized for durability All rotational tension of the parts may be set to your preference with an Allen wrench, and all hardware is top-quality heat-treated alloy plated with our gold cad finish for strength and durability All moving parts feature super-smooth pivoting action due to the use of nylon spacers between the mating parts